<!DOCTYPE html>
<html>
  <head>
    <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
    <meta name="viewport" content="initial-scale=1.0, user-scalable=no" />
    <style type="text/css">
      body,
      html {
        width: 100%;
        height: 100%;
        margin: 0;
        font-family: "微软雅黑";
      }
      #allmap {
        width: 100%;
        height: 500px;
        overflow: hidden;
      }
      #result {
        width: 100%;
        font-size: 12px;
      }
      dl,
      dt,
      dd,
      ul,
      li {
        margin: 0;
        padding: 0;
        list-style: none;
      }
      p {
        font-size: 12px;
      }
      dt {
        font-size: 14px;
        font-family: "微软雅黑";
        font-weight: bold;
        border-bottom: 1px dotted #000;
        padding: 5px 0 5px 5px;
        margin: 5px 0;
      }
      dd {
        padding: 5px 0 0 5px;
      }
      li {
        line-height: 28px;
      }
    </style>
    <script
      type="text/javascript"
      src="http://api.map.baidu.com/api?v=3.0&ak=P0Fo3eHViqX6s0BkGrUP0VzUcBkJd00g"
    ></script>
    <!--加载鼠标绘制工具-->
    <script
      type="text/javascript"
      src="http://api.map.baidu.com/library/DrawingManager/1.4/src/DrawingManager_min.js"
    ></script>
    <link
      rel="stylesheet"
      href="http://api.map.baidu.com/library/DrawingManager/1.4/src/DrawingManager_min.css"
    />
    <!--加载检索信息窗口-->
    <script
      type="text/javascript"
      src="http://api.map.baidu.com/library/SearchInfoWindow/1.4/src/SearchInfoWindow_min.js"
    ></script>
    <link
      rel="stylesheet"
      href="http://api.map.baidu.com/library/SearchInfoWindow/1.4/src/SearchInfoWindow_min.css"
    />
    <title>百度地图API功能演示</title>
  </head>
  <body>
    <div id="allmap" style="overflow: hidden; zoom: 1; position: relative">
      <div
        id="map"
        style="
          height: 100%;
          -webkit-transition: all 0.5s ease-in-out;
          transition: all 0.5s ease-in-out;
        "
      ></div>
    </div>
    <div id="result">
      <input
        type="button"
        value="获取绘制的覆盖物个数"
        onclick="alert(overlays.length)"
      />
      <input type="button" value="清除所有覆盖物" onclick="clearAll()" />
      <input
        type="button"
        value="获取多边形的顶点"
        onclick="getPoint()"
      /><br />
      <input
        type="button"
        value="开启线、面编辑功能"
        onclick="Editing('enable')"
      />
      <input
        type="button"
        value="关闭线、面编辑功能"
        onclick="Editing('disable')"
      />
      <input
        type="button"
        value="显示原有多边形"
        onclick="showPolygon(this)"
      /><br />

      <input
        type="button"
        value="画多边形"
        onclick="draw(BMAP_DRAWING_POLYGON)"
      />
      <input
        type="button"
        value="画矩形"
        onclick="draw(BMAP_DRAWING_RECTANGLE)"
      />
      <input type="button" value="画线" onclick="draw(BMAP_DRAWING_POLYLINE)" />
      <!-- <input type="button"  value="画点" onclick="draw(BMAP_DRAWING_MARKER)" />-->
      <span>右键获取任意点的经纬度</span>
    </div>
    <div id="resultShape"></div>
    <div id="shape">坐标为</div>

    <script type="text/javascript">
      function $(id) {
        return document.getElementById(id);
      }

      // 百度地图API功能
      var map = new BMap.Map("map");
      var poi = new BMap.Point(113.948913, 22.530844);
      map.centerAndZoom(poi, 16);
      map.enableScrollWheelZoom();
      var overlays = [];
      var overlaycomplete = function (e) {
        overlays.push(e.overlay);
      };
      var styleOptions = {
        strokeColor: "red", //边线颜色。
        fillColor: "red", //填充颜色。当参数为空时，圆形将没有填充效果。
        strokeWeight: 3, //边线的宽度，以像素为单位。
        strokeOpacity: 0.8, //边线透明度，取值范围0 - 1。
        fillOpacity: 0.6, //填充的透明度，取值范围0 - 1。
        strokeStyle: "solid", //边线的样式，solid或dashed。
      };

      //实例化鼠标绘制工具
      var drawingManager = new BMapLib.DrawingManager(map, {
        isOpen: false, //是否开启绘制模式
        //enableDrawingTool: true, //是否显示工具栏
        drawingToolOptions: {
          anchor: BMAP_ANCHOR_TOP_RIGHT, //位置
          offset: new BMap.Size(5, 5), //偏离值
        },
        circleOptions: styleOptions, //圆的样式
        polylineOptions: styleOptions, //线的样式
        polygonOptions: styleOptions, //多边形的样式
        rectangleOptions: styleOptions, //矩形的样式
      });

      //添加鼠标绘制工具监听事件，用于获取绘制结果
      drawingManager.addEventListener("overlaycomplete", overlaycomplete);

      map.addEventListener("rightclick", function (e) {
        if (confirm(e.point.lng + "," + e.point.lat)) {
          $("shape").innerHTML =
            $("shape").innerHTML +
            " <br/>(" +
            e.point.lng +
            "," +
            e.point.lat +
            ")";
        }
      });
      function draw(type) {
        drawingManager.open();
        drawingManager.setDrawingMode(type);
      }

      function clearAll() {
        for (var i = 0; i < overlays.length; i++) {
          map.removeOverlay(overlays[i]);
        }
        overlays.length = 0;
      }
      function getPoint() {
        $("resultShape").innerHTML = "";
        for (var i = 0; i < overlays.length; i++) {
          var overlay = overlays[i].getPath();
          $("resultShape").innerHTML =
            $("resultShape").innerHTML + overlay.length + "边形:<br/>";
          for (var j = 0; j < overlay.length; j++) {
            var grid = overlay[j];
            $("resultShape").innerHTML =
              $("resultShape").innerHTML +
              (j + 1) +
              "个点:(" +
              grid.lng +
              "," +
              grid.lat +
              ");<br/>";
          }
        }
      }
      function Editing(state) {
        for (var i = 0; i < overlays.length; i++) {
          state == "enable"
            ? overlays[i].enableEditing()
            : overlays[i].disableEditing();
        }
      }

      function showPolygon(btn) {
        var polygon = new BMap.Polygon(
          [
            new BMap.Point(113.941853, 22.530777),
            new BMap.Point(113.940487, 22.527789),
            new BMap.Point(113.94788, 22.527597),
            new BMap.Point(113.947925, 22.530618),
          ],
          styleOptions
        ); //创建多边形
        map.addOverlay(polygon); //增加多边形
        // overlays.push(polygon); //是否把该图像加入到编辑和删除行列
        btn.setAttribute("disabled", "false");
        showText();
      }

      function showText() {
        var opts = {
          position: new BMap.Point(113.941853, 22.530777), // 指定文本标注所在的地理位置
          offset: new BMap.Size(30, 30), //设置文本偏移量
        };
        var label = new BMap.Label("不可编辑", opts); // 创建文本标注对象
        label.setStyle({
          color: "black",
          fontSize: "16px",
          fillColor: "red", //填充颜色。当参数为空时，圆形将没有填充效果。
        });
        map.addOverlay(label);
      }
    </script>
  </body>
</html>
